// Read 8 bytes from given native address
QWord DOS4GWBinaryFile::readNative8(ADDRESS nat) {
int raw[2];
#ifdef WORDS_BIGENDIAN // This tests the host machine
// Source and host are different endianness
raw[1] = readNative4(nat);
raw[0] = readNative4(nat+4);
#else
// Source and host are same endianness
raw[0] = readNative4(nat);
raw[1] = readNative4(nat+4);
#endif
return *(QWord*)raw;
}
// Read 8 bytes as a float
double DOS4GWBinaryFile::readNativeFloat8(ADDRESS nat) {
int raw[2];
#ifdef WORDS_BIGENDIAN // This tests the host machine
// Source and host are different endianness
raw[1] = readNative4(nat);
raw[0] = readNative4(nat+4);
#else
// Source and host are same endianness
raw[0] = readNative4(nat);
raw[1] = readNative4(nat+4);
#endif
//return reinterpret_cast<double>(*raw); // Note: cast, not convert!!
return *(double*)raw;
}
// Read 4 bytes as a float
float MachOBinaryFile::readNativeFloat4(ADDRESS nat)
{
int raw = readNative4(nat);
// Ugh! gcc says that reinterpreting from int to float is invalid!!
//return reinterpret_cast<float>(raw); // Note: cast, not convert!!
return *(float*)&raw; // Note: cast, not convert
}
bool BinaryImage::readNativeFloat4(Address addr, float &value) const
{
const BinarySection *sect = getSectionByAddr(addr);
if (sect == nullptr || sect->getHostAddr() == HostAddress::INVALID) {
LOG_WARN("Invalid read at address %1: Address is not mapped to a section", addr.toString());
return false;
}
else if (addr + 4 > sect->getSourceAddr() + sect->getSize()) {
LOG_WARN("Invalid read at address %1: Read extends past section boundary", addr);
return false;
}
DWord raw = readNative4(addr);
value = *reinterpret_cast<float *>(&raw); // Note: cast, not convert
return true;
}
